What are the three types of structural icing? {Ans: Rime, Clear, Mixed}What are V1, Vr, and V2? {Ans: }What is an area forecast? (FA) {Ans: Expected VMC, clouds, and general WX conditions over an area the size of several states. FA's should be used in conjunction with AIRMETs SIGMETs, and convective SIGMETs to get a full picture.}What is VFR? (Ceiling/visibility) {Ans: Visual flight rules. More than 1000 ft ceiling and 3 miles or greater visibility.}What is the operational service volume of a high VOR? {Ans: H (High Altitude) From 1,000 feet AGL up to and including 14,500 feet AGL at radial distances out to 40 NM. From 14,500 AGL up to and including 18,000 feet at radial distances out to 100 NM. From 18,000 feet AGL up to and including 45,000 feet AGL at radial distances out to 130 NM. From 45,000 feet AGL up to and including 60,000 feet at radial distances out to 100 NM.}What is true altitude? {Ans: This is the height above "mean sea level"}